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Old 03-10-2013, 08:46 AM
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Can't see timing marker

OK, I have a motor that I have never been able to time with a light because the damper sets so far back under the water pump that I cannot see the marker. I can see the damper from the bottom, so I put marks on it at 10, 18 and 20 deg BTDC. To make matters worse, the radiator angles back from the top and prevents me from getting any kind of clear view. I tried a mirror on an extension, even that didn't seem to help. This motor has about 20k miles on it, all timed by ear. Should I just leave well enough alone?

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Old 03-10-2013, 09:01 AM
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Timing is a very important part of a motor running correctly - this will affect many things - how the carb reacts, vacuum and so on. One suggestion, Find TDC again and make another mark with another made up pointer. Use a dial timing light and set it that way.
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Old 03-10-2013, 09:13 AM
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Since the only way I can see the damper is from below, I may have to make up a pointer and time it that way?
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Old 03-10-2013, 10:11 AM
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OK, so I made a mark on the pan and timed it that way. It had been set 6~8 BTDC and everyone and their brother has told me this motor should be 18 BTDC. May explain the horrible fuel mileage which got me going on this to begin with.
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Old 03-10-2013, 10:17 AM
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Just curious what motor this is and what vehicle is it in?
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Old 03-10-2013, 11:04 AM
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Yeah, what he said.....***kinda motor ya got that the timing marks cant be seen from above? Ive worked on alot of stuff and have never had that kinda prob.....even on industrial equipment....huh...weird

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Old 03-10-2013, 12:39 PM
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Look behind the water pump and you'll see a timing tube that you point the light down. Your balancer should be marked to read the timing. Chevy long water pump had those.
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